Are you in a local parenting support group?

I've been struggling at times.... especially with screaming and intolerance to my 4.5 year old DS I have very little patience and I could use some help. Out of curiosity, I googled parenting support group and several popped up. They are groups led by professionals (supposedly). Most of them are for parents with adolescents, which really freaked me out about the road ahead of me, but it makes me wonder if any of you may be in a support group like that, or thinking about getting into one. Talking to someone would really help me but I am not sure I am comfortable dishing out $$$ every other week....

Would you mind sharing your experience if you are in a group like that? And what is your struggle with parenting?